Zobrazeno 1 - 10
of 676
pro vyhledávání: '"Rühl, W."'
Autor:
Ruehl, W.
Publikováno v:
Phys.Lett. B605 (2005) 413-418
Higher spin field theory on AdS(4) is defined by lifting the minimal conformal sigma model in three dimensional flat space. This allows to calculate the masses from the anomalous dimensions of the currents in the sigma model. The Goldstone boson fiel
Externí odkaz:
http://arxiv.org/abs/hep-th/0409252
Autor:
Manvelyan, R., Ruehl, W.
Publikováno v:
Phys.Lett. B593 (2004) 253-261
The higher spin interaction currents for the conformally coupled scalar in $AdS_{4}$ space for both regular and irregular boundary condition corresponding to the free and interacting critical point of the boundary O(N) sigma model are constructed. Th
Externí odkaz:
http://arxiv.org/abs/hep-th/0403241
Autor:
Ruehl, W.
Publikováno v:
Nucl.Phys. B705 (2005) 437-456
A quantum field theory on Anti-de-Sitter space can be constructed from a conformal field theory on its boundary Minkowski space by an inversion of the holographic mapping. To do this the conformal field theory must satisfy certain constraints. The st
Externí odkaz:
http://arxiv.org/abs/hep-th/0403114
The three-point functions of two scalar fields $\sigma$ and the higher spin field $h^{(\ell)}$ of HS(4) on the one side and of their proposed holographic images $\alpha$ and $\mathcal{J^{(\ell)}}$ of the minimal conformal O(N) sigma model of dimensio
Externí odkaz:
http://arxiv.org/abs/hep-th/0401240
Autor:
Manvelyan, R., Ruehl, W.
Publikováno v:
Phys.Lett. B567 (2003) 53-60
The multiplet of superconformal anomalous currents in the case $(1,0)$, $d=6$ is derived. The supersymmetric multiplet of anomalies contains the trace of the energy momentum tensor, the gamma trace of the supercurrent and some topological vector curr
Externí odkaz:
http://arxiv.org/abs/hep-th/0305138
Publikováno v:
Phys.Lett. B555 (2003) 271-278
We evaluate the 4-point function of the auxiliary field in the critical O(N) sigma model at O(1/N) and show that it describes the exchange of tensor currents of arbitrary even rank l>0. These are dual to tensor gauge fields of the same rank in the Ad
Externí odkaz:
http://arxiv.org/abs/hep-th/0211092
Publikováno v:
Nucl.Phys. B641 (2002) 188-222
We develop a recursive algorithm for the investigation of infinite sequences of quasi-primary fields obtained from chiral primary operators (CPOs) $O^I_k(x)$ and eventually their derivatives by applying operator product expansions and singling out SO
Externí odkaz:
http://arxiv.org/abs/hep-th/0112191
Publikováno v:
Nucl.Phys. B608 (2001) 177-202
Operator product expansions are applied to dilaton-axion four-point functions. In the expansions of the bilocal fields $\tilde{\Phi}\tilde{\Phi}$, $\tilde{C}\tilde{C}$ and $\tilde{\Phi}\tilde{C}$, the conformal fields which are symmetric traceless te
Externí odkaz:
http://arxiv.org/abs/hep-th/0012153
Publikováno v:
Nucl.Phys. B589 (2000) 337-355
We develop a method of singularity analysis for conformal graphs which, in particular, is applicable to the holographic image of AdS supergravity theory. It can be used to determine the critical exponents for any such graph in a given channel. These
Externí odkaz:
http://arxiv.org/abs/hep-th/0006165
Publikováno v:
Adv.Theor.Math.Phys. 4 (2002) 571-615
We present a detailed analysis of a scalar conformal four-point function obtained from AdS/CFT correspondence. We study the scalar exchange graphs in AdS and discuss their analytic properties. Using methods of conformal partial wave analysis, we pres
Externí odkaz:
http://arxiv.org/abs/hep-th/0002154